Science News
Ten millennia of hepatitis B virus evolution described
Science Daily - 7 Oct 2021 20:58
Researchers uncover the evolution of the hepatitis B virus since the Early Holocene by analyzing the largest dataset of ancient viral genomes produced to date.
Small molecules with a dual function
Science Daily - 7 Oct 2021 18:22
Researchers have deciphered a molecular mechanism with which a small RNA and a small protein regulate the metabolism of cholera bacteria and the production of the cholera toxin.
Chemotherapy Drug Reverses Alzheimer's Symptoms in Mice
Neuroscience News - 7 Oct 2021 01:02
Axitinib, a chemotherapy drug that inhibits the growth of new blood vessels in the brain, improved memory and cognition in mouse models of Alzheimer's disease.
Scientists Assemble a Biological Clock in a Test Tube to Study How It Works
Neuroscience News - 7 Oct 2021 23:45
A reconstituted circadian clock of cyanobacteria can run for consistent days, allowing researchers to study the interactions of the clock proteins in real-time and observe how the clock exerts control over gene expressio...
Smoggier Skies, Lower Scores? Air Pollution Impacts Cognitive Performance of Students
Neuroscience News - 7 Oct 2021 23:26
An increase of 10 micrograms per cubic meter of PM10 air pollution on examination days reduced students' test scores by 8% on average, a new study reports.
Planned home birth presents little risk where midwifery is well-integrated
Science Daily - 7 Oct 2021 23:06
In the state of Washington, a planned home birth with a licensed midwife is just as safe as a birth at a licensed birth center. Researchers arrived at this conclusion after analyzing outcomes of more than 10,000 communit...
Signs of Alzheimer's Disease May Be Detectable Before Significant Symptoms Are Obvious
Neuroscience News - 7 Oct 2021 23:06
People with genetic risks for Alzheimer's disease may exhibit changes in brain structure and reduced performance in cognitive tests long before symptoms of the neurodegenerative disease become obvious.
Tracking How the Environment Influences Circadian Rhythms
Neuroscience News - 7 Oct 2021 22:37
A new study traces the mechanisms that link environmental signals and our circadian clocks.
Clean Air Matters for a Healthy Brain
Neuroscience News - 7 Oct 2021 22:21
Recent studies have linked air pollution to increased risks for Alzheimer's disease and other health problems. A new study reports a reduction of atmospheric fine particulates and better air quality can reduce the risk o...
Michigan boy finds 'dragon's tooth' that belonged to a mastodon
Live Science - 7 Oct 2021 21:57
A boy stumbled upon a mastodon molar while on a nature walk in Michigan.
More Precise Deep Brain Stimulation Shows Promise for Parkinson's Patients
Neuroscience News - 7 Oct 2021 21:44
A new, improved DBS technique that targets specific subpopulations of neurons in the globus pallidus with short bursts of stimulation shows promising results as a treatment for Parkinson's disease.
Novel Biomarker for Anxiety Disorder Identified
Neuroscience News - 7 Oct 2021 21:09
Researchers have identified a brain rhythm associated with emotional conflict that appears to be a biomarker for anxiety disorder.
Rocks gathered by Chang'e 5 rover show magma once spewed from the moon
New Scientist - 7 Oct 2021 21:00
Lunar samples brought back to Earth by the Chang'e 5 spacecraft seem to be less than 2 billion years old, meaning the moon had volcanic activity more recently than researchers expected
Ancient Mars lake had fast-moving floods that carried huge boulders
New Scientist - 7 Oct 2021 21:00
Mars used to have flowing water, which filled Jezero Crater with an enormous lake. Images of cliff faces taken by NASA's Perseverance rover show the lake used to flood 3.7 billion years ago
'Gut bugs' can drive prostate cancer growth and treatment resistance
Science Daily - 7 Oct 2021 20:59
Common gut bacteria can become 'hormone factories' - fuelling prostate cancer and making it resistant to treatment, a new study shows. Scientists revealed how gut bacteria contribute to the progression of advanced prosta...
Scientists assemble a biological clock in a test tube to study how it works
Science Daily - 7 Oct 2021 20:58
Daily cycles in virtually every aspect of our physiology are driven by biological clocks (also called circadian clocks) in our cells. The cyclical interactions of clock proteins keep the biological rhythms of life in tun...
Promising results for Parkinson's disease treatment
Science Daily - 7 Oct 2021 20:58
Researchers have found a way to make deep brain stimulation (DBS) more precise, resulting in therapeutic effects that outlast what is currently available. The work will significantly advance the study of Parkinson's dise...
A rare 2,700-year-old luxury toilet found in Jerusalem
Live Science - 7 Oct 2021 20:19
Archaeologists recently discovered a 2,700-year-old private toilet inside the remains of an ancient royal estate in Jerusalem.
Researchers observe laser-driven tin ejecta microjet interactions
Phys.org - 7 Oct 2021 19:04
The experimental observations of high-velocity particle-laden flow interactions has been sparse, given the difficulty of generating high-velocity flows of many particles. These observations play an important role in unde...
We might finally know what causes 'COVID toes'
Live Science - 7 Oct 2021 19:04
The rashes may emerge due to a runaway immune response.
Mysterious Mexican mangrove forest is 'trapped in time' hundreds of miles from the coast
Live Science - 7 Oct 2021 18:48
A new study has revealed that a landlocked mangrove forest in the Yucatán Peninsula migrated there from the coast when sea levels were much higher, around 125,000 years ago.
Striking bull's-eye-shaped clouds form above erupting La Palma volcano
Live Science - 7 Oct 2021 18:31
Satellite images released by NASA's Earth Observatory show concentric rings of clouds forming above the erupting volcano on La Palma in the Canary Islands.